Heating apparatus.



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' v Patented Aug. 20,` 190|. A. FISHER.

HEATING APPARATUS. I

(Application led. Fel?. 9, 1899.)

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HEATINGA APPARATUS.

(Application med Feb. 1899.)

Patented Aug. 2o, miam.`

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A F I S H E R HEATING APPARATUS.

(Application filed Feb. 9, 1899.)

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A. FISHER. HEATING APPARATUS. (Apliuegion mea Feb. 9,*1s9o.)

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INVENTOH UNITED STATES PATENT Fries.

All/IOS FISHER, OF ORESTLINE, OHIO.

HEATING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 681,019, dated August 20, 1901.

Application iiled February 9 189,9. Serial No. 705,075. (No model.)

` `and correct description.

ul I o The invention relates particularly to an apparatus for heating dwellings and other structures by supplying heated air to the various apartments thereof, the air being warmed in a chamber which incloses the furnace proper of the apparatus and then conducted through `suitable conduits to such apartments. l-Ieaters of this character are ordinarily located in a cellar or in a basement; but under some r circumstances they are placed wholly outside the structure which is to be warmed.

The invention consists in the provision in an apparatus of the character above indicated of various novel elements or combinations of elements, as will be hereinafter particularly lss described and then specitically pointed out in theclaims.

In the accompanying drawings, which constitute a part of this specication,`Figure l represents a central vertical sectionin a plane extending through the inlet and outlet openings of theair-chamber, which encircles the fuel-chamber of the apparatus. Fig. 2 is a vertical central section in a plane essentially at a right angle'with that of Fig. l. Fig. 3 is a horizontal section as in the line 'y y of Fig. l. Fig. 4 is a horizontal section taken in the line uc of Fig. 1.` Fig. 5 isa top plan view showing the reservoircover,the annular steam or hot-water chamber, the cylindrical upper section of the body of the combustionchamber resting upon .the reservoir-cover, and the series of arches or radiating loops which rest upon and areconnected with the annular water and steam chamber. Fig. 6 represents a plan of the annular water or` steam chamber, the surmounting radiating arches or loops having been detached. y From the center of the broad circular baseplate cof the furnace or heating apparatus A risesthe'circular ash-pit or ash-chamber a2, within the upper `extremity of which tests -the grate lag and upon which by its bottom groove a4 is received the fire-pot section as. The fire-pot section d3, as will be ob served, incloses by its outer wall a and by its inner wall or fire-pot proper, d5, an airwarming chamber al, which at one side has a projecting air-inlet passage or air-trunk as and at its opposite side a warm-air-discharging opening am. The upper portion of this fire-pot section a3 consists of a broad outwardly-overhanging plate cl2, which is composed of steel and which is encircled by an attached ring r, which has an upper and a lower recess or shoulder rs and which in its upper surface has a shallow depression or recess et to receive the correspondingly-flattened bottom extremity of the water section or reservoir 61,15, which, as will be noted, is cir-V cular in its lower portion below the f nel-opening of and of horseshoe form in its upper portion, the water supplied through the feedpipe n.18 being contained between the outer shell or cylindrical wall an" and the inner cylindrical wall d20. Upon the water section or reservoir 0.15 is received the ring am, which in its bottom surface has inner and outer concentric grooves Q22 and w23 to receive, respectively, the wall d and the wall al of the water-section and which is provided also with an upper or top groove 01.24 to receive the vertical annular or cylindrical combustion chamber section c25, which is preferably plain and imperforate, as shown. Resting upon the covering-ring am and encircling its superposed cylindrical section 0,25, is the horizontally-arranged tubular steam-section w26, which has oppositely-placed pipes ap ap, which extend downwardly through openings in the covering-ring n.21 into the water section or reservoir Q15. From the upper portion of the encircling steam-section L26 rise the arched steam pipes or radiatingarches otr, in any suitable or convenient number.

Upon the cylindrical combustion -cham-v ber section c25 rests by its bottom groove gr the covering-section or dome-section et, which is upwardly rounded, as shown, and

the thick heat-'absorbing casting or inverted basin-like cap c, which near its periphery has the bottom groove gr, already referred to. This section has an attached depending rod 0.28 for an inverted cone or delector ad, which is in line with and below the smoke-exit as `whichin its central portion is composed of y of the cone, and upon its exterior surface it has a series of outwardly-projecting arms @29, which at their outer extremities receive a supporting-ring r2 for attachment of a section of the hot-air chamber or heat-reservoir to be further described.

From an opening in the upper portion of the encircling steam-section @26 a steam-escape pipe ep extends first directly upward, then horizontally outward through the body of the air-casing, and then upward to a suitable distance, where'at its terminal point itis.

provided with a safety-valve so. The smokeexit pipe @31 is composed of two vertical sections and four horizontal sections-namely, the primary vertical section @32, rising from the exit-opening @8; the horizontal section @33, extending outward to a point beyond the plane of the furnace proper; the vertical section a34, extending downward to a point below the rounded portion of the dome-section, and the three-part horizontal section @35, consisting of the two plain sectionssand stand an intermediate damper-section or checkdraft and clearing-section ass.

As here shown, the air-casing A2 of the heating apparatus is composed of three horizontalsheet-metalsections71 h2, and h3. The lowermost section his fitted to the circular base-plate d and to the ring r. The topmost or dome section h3 covers the dome, and by its lower extremity is fitted to the uppermost ring r2. The intermediate casing-section h2 encircles the coincident water section or reservoir @15 and is fitted to the rings r and r2. The intermediate casing-section h2 and the lowe'rmost casing-section h are at their ends provided with securinglugs sl to receive fastening-bolts fb, Figs. 3 and et, While the upper or dome section h3 of the casing is adapted to be lifted bodily upward. The horizontally-curved metallic front A3, which has ash-pit opening covered by a door d, draftopening covered by door d2, and fuel-supply opening provided with door d3, is secured to the front of the casing by means of suitable screws. From the upper extremity or steamspace of the Water section or reservoir steampipes ap ap extend through the covering plate or ring @21 into the tubular steam ring or section @26, from which it finds its way in part into the series of arched steam sections or loops ar, in part into a pipe which extends to a radiator in an upper story, and in part into a pipe sp, which extends Iirst upwardly within the hot-air casing, then horizontally outward within a supplemental hot-air pipe hap, and thence directly upward within a continuation of the same hot-air pipe, at the extremity of which it is formed into a steamcoil sc at a point coincident with the opening of a wall-register or of a floor-register fr.

The grate ag, before referred to, is provided with a central opening or clearing-aperture which is closable by means of a slidable plate or grated section which rests in marginal ways of the grate and is operated by a suitable handle or rod. The outer periphery of the grate, which is circular, as best seen in Fig. 4, rests upon antifriction wheels or rollers ro, which in turn are supported upon pivot pins or bearings which are received in the body of the bed-plate bp of the fire-pot section @3.

A heating apparatus thus constructed combines various important advantages. By reason of the provision of the air-passage directly encircling the fuel-chamber or firepot and receiving air at one side and discharging it at the opposite side thereof the currents of air are subjected to a high temperature through their contact with the highly-heated surface of the fire-pot until the moment of their discharge into the encircling air-chamber. Through the provision of the water chamber or reservoir directly surmounting the fuel-chamber or fire-pot the inner face of such chamber or section is exposed to the direct action ofthe volatile products of combustion as they rise from the incandescent fuel, causing quick ebullition of the contents of the section and rapid production and discharge of steam into the steamsection above. Through the provision of the steam-section, acting in conjunction with the water-section and with the loops or steamarches upon such steam-section, an extensive heat-radiating surface is afforded, still further elevating the temperature of the air Within the hot-air chamber. Because of the provision of the inverted cone in the upper portion of the combustion-chamber directly below and in connection with the exit-opening at the upper extremity of the dome or covering-section the products of combustion as they rise are defiected and spread outwardly, thereby imparting a high temperature to the heavy mass of metal of whichthe main portion of the dome is composed, and thus providing, as it were, a reservoir of heat for Warming the space within the air-chamber. Through the peculiar construction and arrangement of the smoke-discharging pipe its contents dive low-before escape is possible. The currents are thus retarded in their ow, their contained caloric is lin large degree imparted to the pipe for radiation therefrom, and a damper for such pipe is in most cases not required. By reason of the provision of the check-draft and clearing-section in the exposed portion ofthe smoke-discharging pipe outside the hot-air casing'it is made easy to regulate the movement of the smokecurrents and also to readily remove from the section and from contiguous portionsof the discharging-pipe accumulations of soot and other substances resulting` from combustion without removing any portion of the casing of the hot-air chamber. Through the construction of the hot-air casing in superposed horizontal sections each section is made indepcndently removable, thereby aording IOO IIO

. downwardly extending ready access to any portion of the hot-air chamber without necessity for removing such casing as a whole.

The purpose, the construction, and the operation of the heating apparatus having been thus fully described, what is claimed isl. In a heating apparatus, the combination of a fuel-,chamber section; a water-section which is mounted upon the fuel-chamber section; a covering-ring which rests upon the water-section, and which is provided with steam receiving pipes; and a steam-section which rests upon the covering-ring of the water-section, and

which, by means of the steam-receiving pipes, has communication with such water-section;

` substantially as shown and described.

2. In an air-heating apparatus, a fuel-chamber section which at its upper extremity has an outwardly-extending peripheral projection; a water-section which rests upon such peripheral projection; a solid covering-ring which is grooved above and below, and which has upwardly" and downwardly projecting steam-conducting pipes; and the described annular, transversely-circular, steam chamber or conduit which is provided with a series of superposed arch-like steam-loops or radiating branches, and which rests upon the solid covering-ring of the water-section in combination; as set forth.

3. In an air-heating apparatus, the combination of a re-pot or f ucl-chamber section i which has a broad, overhanging, peripheral projection; a water-section which rests upon j aperipheral projection of the fuel-chamber section; a covering-ring which by its bottom grooves is received upon the inner and the outer wall of the water-section; an annular combustion-chamber section which rests in a groove in the covering-ring; and a horizona", and the ring or plate @12, provided with top recess 61,14; the water-section @15, resting in the recess @14, of the covering and supporting plate @12, and having the described supplypipe am; the grooved covering-ring w21, having the verticallyplaced steam-pipes ap, and supporting the cylinder @25, and the encircling steam-distributing chamber or passage @26, which also is mounted upon the ring @21; in combination.

5. In heating apparatus, the combination with the combustion-chamber of a surmountin g dome or cap which is composed of a thick, metallic, hollowed and rounded cone; and a vertically-adjustable deector which is supported, centrally, within the upper portion of the comb ustion-chamber, and is of inverted conical form, to adapt it to deiiect and to direct laterally outward and upward, the ascending currents of smoke and other volatile products of combustion.

6. In va heating apparatus, the combination with the combustion-chamber; of a surmounty ing dome or cap which is of rounded conical form, and of a thickness several times greater than that of the contiguous body of the combustion-chamber, and which at its top is provided with a central smoke-discharge opening; and a deiiector, of inverted conical form, supported centrally within the combustionchamber, at a short distance below the escape or smoke-discharge opening, and provided upon its supporting-rod with means of adjustability, up or down; substantially as described and shown.

7. In a heating apparatus, the combination of the water-section @15; the covering-ring @21; the steam-chamber @26, resting upon the covering-ring; the steam-pipes @13, mounted in the covering-ring, and projecting into the' loops or radiating-arches ar; substantially as shown and described. l j

In testimony whereof I have, on this 7th day of November, 1898, affixed my signature in the presence of two subscribing witnesses.

AMOS FISHER. y Vitnesses:

W. STAHLE, F. M. ANDERSON.

Ico 

